Improvement in machines for cutting hoops



Patented April 1 181713 j v A. G. PARKHURST. Machines far Cutting Hoops.

'WiMM:

AM PHOTO-LIT/IOGRAPH/c C0. N.Y.(05R0R-s3 PROCESS) UNITED S'rA'rEs PATENTOFFICE.

AUGUSTUS G. PARKHURST, OF APPLETON, WISCONSIN.

IMPROVEMENT IN MACHINES FOR CUTTING HOOPS.

Specification forming part oi Lettcrs Patent No.13'7,384, dated April 1,1873; application filed October 7, 1871.

To all whom it may concern:

Be it known that I, Auensrus .G. PARK- HURs'r, of Appleton, in thecounty of Outagamie and State of Wisconsin, have invented ailImprovement in Machines for Cutting Hoops, of which the following is aspecification:

This invention relates to a new and useful improvement in machines forcutting beveled nieces or sheets from blocks of wood; and conlists inthe arrangement of the cutting-knives in a sliding frame, as hereinaftermore fully described.

In the accompanying drawing, Figure 1 represents a front elevation ofthe machine. Fig. 2 is a horizontal section of Fig. 1 taken on the linea: m. Fig. 3 is a vertical section of Fig. 1 taken on the line y y.

Similar letters of reference indicate corresponding parts.

A is a horizontal bed, supported by the stands B B. O O are uprights,supported by the stands B B. E E are guide-ribs on the inside of theuprights O O. F is a knife-frame, which is given a vertical motion byconnecting it with any convenient motive power at the point Gr. Theframe is guided in its motion by the ribs E E of the uprights and theears H of the frame. I is a rail on the frame, and J is a longhorizontal knife or cutter attached to the rail. K is a guide-plate,which connects the two uprights of the frame, the top end of which iseven (as to height) and parallel with the edge of the knife J. Lrepresents vertical ribs on the face of the guide-plate. M M are twoknives or cutters, which are attached to the adjustable pieces N at oneend, and are made adjustable by means of screws. The other ends of theknives are attached to the pins 0 O, which are stationary on the plateK. As seen in Fig. 3, these knives are placed at an angle with the longknife J.

The piece of "wood to be out is placed on the bed A, against thevertical ribs L, and be tween the adjustable pieces N. The short knivesM M may be set to any required angle with the long knife J. As theknives are brought down upon the piece of wood the ends are cut to abevel simultaneously, and then the sheet which is out from the piece bythe long knife J will be evenly beveled at each end, so that they may belapped onto each other and fastened when formed into boxes or cylindersfor various purposes.-

I am aware of the wood-cutting machine patented to J. B. Dougherty,February 23,

1864, which bears some outward resemblance to mine, but is considered bymyself, and will doubtless be esteemed by a discerning public,

as a machine crude and practically incomplete Witnesses:

J. E. HARRIMAN, D..O. BABOOCK.

